Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 59, NWS Paducah, KY

March 23, 2012Jefferson County, Illinois

NWS Paducah, KY issued this tornado warning at Mar 23, 2012, 1:29 PM CDT for Jefferson County, Illinois. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 23, 2012, 1:29 PM CDT (18:29 UTC)
Expired
Mar 23, 2012, 2:15 PM CDT
In force
46 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

County Jefferson County, IL

The radar

The Evansville,IN radar (KVWX), 100 km from the middle of the area, began a volume at 18:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 23, 11:44 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.5 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2012-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

333 
WFUS53 KPAH 231829
TORPAH
ILC081-231915-
/O.NEW.KPAH.TO.W.0059.120323T1829Z-120323T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
129 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 215 PM CDT.

* AT 126 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 2 MILES
  EAST OF OPDYKE. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTH AT  
  25 MPH. A SECOND STORM WAS DETECTED WEST OF MOUNT VERNON...WHICH   
  IS CAPABLE OF PRODUCING A TORNADO.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  MOUNT VERNON...WOODLAWN...BLUFORD AND DIX.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3847 8870 3817 8871 3820 8915 3848 8914
      3849 8878
TIME...MOT...LOC 1829Z 187DEG 21KT 3827 8881

$$
2 follow-up statements
548 
WWUS53 KPAH 231846
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
146 PM CDT FRI MAR 23 2012

ILC081-231915-
/O.CON.KPAH.TO.W.0059.000000T0000Z-120323T1915Z/
JEFFERSON IL-
146 PM CDT FRI MAR 23 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN JEFFERSON COUNTY
IN SOUTH CENTRAL ILLINOIS UNTIL 215 PM CDT...

AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTH OF BLUFORD...OR 11 MILES NORTHEAST OF
MOUNT VERNON...MOVING NORTH AT 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3847 8870 3835 8871 3840 8908 3848 8914
      3849 8878
TIME...MOT...LOC 1847Z 196DEG 27KT 3844 8875

$$
626 
WWUS53 KPAH 231908
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
208 PM CDT FRI MAR 23 2012

ILC081-231918-
/O.EXP.KPAH.TO.W.0059.000000T0000Z-120323T1915Z/
JEFFERSON IL-
208 PM CDT FRI MAR 23 2012

...THE TORNADO WARNING FOR NORTHERN JEFFERSON COUNTY IN SOUTH CENTRAL
ILLINOIS WILL EXPIRE AT 215 PM CDT/315 PM EDT/...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 3847 8870 3835 8871 3840 8908 3848 8914
      3849 8878
TIME...MOT...LOC 1908Z 196DEG 27KT 3859 8869

$$

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 23, 11:14 AM CDTSevere Thunderstorm WarningPAHJackson, Union46 min
Mar 23, 11:19 AM CDTSevere Thunderstorm WarningPAHJohnson, Massac, Pope26 min
Mar 23, 11:45 AM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline, Williamson30 min
Mar 23, 11:51 AM CDTTornado WarningPAHJackson24 min
Mar 23, 12:15 PM CDTSevere Thunderstorm WarningPAHHamilton, Saline, Williamson30 min
Mar 23, 12:18 PM CDTTornado WarningPAHFranklin, Jackson, Perry42 min
Mar 23, 12:22 PM CDTSevere Thunderstorm WarningPAHMassac, Pope23 min
Mar 23, 12:55 PM CDTTornado WarningPAHFranklin, Jefferson, Perry35 min
Mar 23, 1:32 PM CDTSevere Thunderstorm WarningPAHEdwards, Wabash, Wayne, White28 min
Mar 23, 1:52 PM CDTTornado WarningPAHWayne23 min
Mar 23, 2:12 PM CDTSevere Thunderstorm WarningPAHEdwards, Wabash33 min
Mar 23, 2:46 PM CDTTornado WarningPAHWayne14 min

Nearby

Tornado Warnings in Illinois, 2012Every tornado warning in 2012Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.